US20220091534A1 - Image alignment by detecting change in position of beam - Google Patents

Image alignment by detecting change in position of beam Download PDF

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Publication number
US20220091534A1
US20220091534A1 US17/417,032 US202017417032A US2022091534A1 US 20220091534 A1 US20220091534 A1 US 20220091534A1 US 202017417032 A US202017417032 A US 202017417032A US 2022091534 A1 US2022091534 A1 US 2022091534A1
Authority
US
United States
Prior art keywords
scanning direction
respect
color
change
certain color
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US17/417,032
Other languages
English (en)
Inventor
Hyoungil Kim
Jaeil YU
Sungdae KIM
Sangbum WOO
Ji Young Byun
Yong Ho You
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hewlett Packard Development Co LP
Original Assignee
Hewlett Packard Development Co LP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hewlett Packard Development Co LP filed Critical Hewlett Packard Development Co LP
Assigned to HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. reassignment HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. CONFIRMATORY PATENT ASSIGNMENT Assignors: HP PRINTING KOREA CO., LTD.
Assigned to HP PRINTING KOREA CO., LTD. reassignment HP PRINTING KOREA CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BYUN, JI-YOUNG, KIM, HYOUNGIL, KIM, SUNGDAE, WOO, SANGBUM, YOU, YONG-HO, YU, Jaeil
Assigned to HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. reassignment HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HP PRINTING KOREA CO., LTD.
Publication of US20220091534A1 publication Critical patent/US20220091534A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23—Reproducing arrangements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105—Details of unit
    • G03G15/011—Details of unit for exposing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/55—Self-diagnostics; Malfunction or lifetime display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
    • H04N1/036—Details of scanning heads ; Means for illuminating the original for picture information reproduction for optical reproduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/047—Detection, control or error compensation of scanning velocity or position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/48—Picture signal generators
    • H04N1/482—Picture signal generators using the same detector device sequentially for different colour components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/50—Picture reproducers
    • H04N1/506—Reproducing the colour component signals picture-sequentially, e.g. with reproducing heads spaced apart from one another in the subscanning direction
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/01—Apparatus for electrophotographic processes for producing multicoloured copies
    • G03G2215/0151—Apparatus for electrophotographic processes for producing multicoloured copies characterised by the technical problem
    • G03G2215/0158—Colour registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0077—Types of the still picture apparatus
    • H04N2201/0081—Image reader
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0448—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207 for positioning scanning elements not otherwise provided for; Aligning, e.g. using an alignment calibration pattern
US17/417,032 2019-06-14 2020-01-07 Image alignment by detecting change in position of beam Abandoned US20220091534A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020190071091A KR20200143151A (ko) 2019-06-14 2019-06-14 빔의 위치 변화 감지를 이용한 화상 정렬
KR10-2019-0071091 2019-06-14
PCT/US2020/012452 WO2020251627A1 (en) 2019-06-14 2020-01-07 Image alignment by detecting change in position of beam

Publications (1)

Publication Number Publication Date
US20220091534A1 true US20220091534A1 (en) 2022-03-24

Family

ID=73781481

Family Applications (1)

Application Number Title Priority Date Filing Date
US17/417,032 Abandoned US20220091534A1 (en) 2019-06-14 2020-01-07 Image alignment by detecting change in position of beam

Country Status (3)

Country Link
US (1) US20220091534A1 (ko)
KR (1) KR20200143151A (ko)
WO (1) WO2020251627A1 (ko)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6342963B1 (en) * 1998-12-16 2002-01-29 Fuji Xerox Co., Ltd. Optical scanning apparatus capable of correcting positional shifts contained in plural images to be synthesized
US20050093962A1 (en) * 2003-11-05 2005-05-05 Naoki Miyatake Optical scanning unit, image forming apparatus, and method of correcting positional misalignment
US20070064087A1 (en) * 2005-09-16 2007-03-22 Ricoh Company, Limited Optical scanning device, image forming apparatus, optical scanning correcting method, and image forming method
US20080024851A1 (en) * 2006-07-31 2008-01-31 Ricoh Company, Limited Optical scanning device and image forming apparatus
US20090147286A1 (en) * 2007-12-07 2009-06-11 Canon Kabushiki Kaisha Image forming apparatus and color deviation correcting method and program
US8571451B2 (en) * 2010-02-08 2013-10-29 Canon Kabushiki Kaisha Image forming apparatus calculating an amount of deviation of an image forming position from a reference

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4462917B2 (ja) * 2003-01-23 2010-05-12 株式会社リコー 光ビーム書込装置、画像形成装置、画像補正方法
JP4390200B2 (ja) * 2004-07-27 2009-12-24 株式会社リコー 多色画像形成装置、多色画像形成装置に用いる光走査装置および多色画像形成装置の色ずれ補正方法
JP2012150397A (ja) * 2011-01-21 2012-08-09 Canon Inc 光走査装置、その制御方法、及び制御プログラム、並びに画像形成装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6342963B1 (en) * 1998-12-16 2002-01-29 Fuji Xerox Co., Ltd. Optical scanning apparatus capable of correcting positional shifts contained in plural images to be synthesized
US20050093962A1 (en) * 2003-11-05 2005-05-05 Naoki Miyatake Optical scanning unit, image forming apparatus, and method of correcting positional misalignment
US20070064087A1 (en) * 2005-09-16 2007-03-22 Ricoh Company, Limited Optical scanning device, image forming apparatus, optical scanning correcting method, and image forming method
US20080024851A1 (en) * 2006-07-31 2008-01-31 Ricoh Company, Limited Optical scanning device and image forming apparatus
US20090147286A1 (en) * 2007-12-07 2009-06-11 Canon Kabushiki Kaisha Image forming apparatus and color deviation correcting method and program
US8571451B2 (en) * 2010-02-08 2013-10-29 Canon Kabushiki Kaisha Image forming apparatus calculating an amount of deviation of an image forming position from a reference

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Machine Translation of JP 2006-035623. 2/9/2006. (Year: 2006) *

Also Published As

Publication number Publication date
KR20200143151A (ko) 2020-12-23
WO2020251627A1 (en) 2020-12-17

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Owner name: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., TEXAS

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Effective date: 20190614

Owner name: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., TEXAS

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